<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="照片任务id" prop="photoTaskId">
        <el-input
          v-model="queryParams.photoTaskId"
          placeholder="请输入照片任务id"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="图片地址" prop="imgUrl">
        <el-input
          v-model="queryParams.imgUrl"
          placeholder="请输入图片地址"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['print:photo:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['print:photo:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['print:photo:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['print:photo:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="photoList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="照片id" align="center" prop="singlePhotoId" />
      <el-table-column label="照片任务id" align="center" prop="photoTaskId" />
      <el-table-column label="图片地址" align="center" prop="imgUrl">
        <template slot-scope="scope">
          <el-image 
            style="width: 80px; height: 80px"
            :src="scope.row.imgUrl"
            :preview-src-list="[scope.row.imgUrl]"
            fit="cover"
          />
        </template>
      </el-table-column>
      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['print:photo:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['print:photo:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改单个图片任务对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="600px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="照片任务id" prop="photoTaskId">
          <el-input v-model="form.photoTaskId" placeholder="请输入照片任务id" />
        </el-form-item>
        <el-form-item label="图片上传" prop="imgUrl">
          <el-upload
            ref="upload"
            :action="uploadAction"
            :headers="uploadHeaders"
            :data="uploadData"
            :file-list="fileList"
            :auto-upload="false"
            :on-change="handleFileChange"
            :on-remove="handleFileRemove"
            :before-upload="beforeUpload"
            :limit="1"
            accept="image/*"
            drag
          >
            <i class="el-icon-upload"></i>
            <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
            <div class="el-upload__tip" slot="tip">只能上传jpg/png文件，且不超过10MB</div>
          </el-upload>
        </el-form-item>
        <el-form-item label="图片地址" prop="imgUrl">
          <el-input v-model="form.imgUrl" placeholder="图片地址将自动填入" readonly />
        </el-form-item>
        
        <!-- 图片预览区域 -->
        <el-form-item label="图片预览" v-if="previewImage">
          <div class="image-preview-container">
            <div class="image-preview-item">
              <el-image 
                :src="previewImage" 
                :preview-src-list="[previewImage]"
                fit="cover"
                style="width: 200px; height: 200px; border-radius: 8px;"
              />
            </div>
          </div>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm" :loading="uploadLoading">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listPhoto, getPhoto, delPhoto, addPhoto, updatePhoto, delPhotosBatch } from "@/api/print/photo"
import { uploadImage } from "@/api/print/upload"

export default {
  name: "Photo",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 单个图片任务表格数据
      photoList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        photoTaskId: null,
        imgUrl: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        photoTaskId: [
          { required: true, message: "照片任务id不能为空", trigger: "blur" }
        ],
        imgUrl: [
          { required: true, message: "图片地址不能为空", trigger: "blur" }
        ]
      },
      // 上传相关
      uploadAction: "#",
      uploadHeaders: {},
      uploadData: {},
      fileList: [],
      uploadLoading: false,
      previewImage: null
    }
  },
  created() {
    this.getList()
  },
  methods: {
    /** 查询单个图片任务列表 */
    getList() {
      this.loading = true
      listPhoto(this.queryParams).then(response => {
        this.photoList = response.rows
        this.total = response.total
        this.loading = false
      })
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        singlePhotoId: null,
        photoTaskId: null,
        imgUrl: null
      }
      this.fileList = []
      this.previewImage = null
      this.resetForm("form")
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm")
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.singlePhotoId)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset()
      this.open = true
      this.title = "添加单个图片任务"
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      const singlePhotoId = row.singlePhotoId || this.ids
      getPhoto(singlePhotoId).then(response => {
        this.form = response.data
        this.open = true
        this.title = "修改单个图片任务"
      })
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.singlePhotoId != null) {
            updatePhoto(this.form).then(response => {
              this.$modal.msgSuccess("修改成功")
              this.open = false
              this.getList()
            })
          } else {
            addPhoto(this.form).then(response => {
              this.$modal.msgSuccess("新增成功")
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const singlePhotoIds = row.singlePhotoId || this.ids
      this.$modal.confirm('是否确认删除单个图片任务编号为"' + singlePhotoIds + '"的数据项？').then(function() {
        return delPhoto(singlePhotoIds)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess("删除成功")
      }).catch(() => {})
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('print/photo/export', {
        ...this.queryParams
      }, `photo_${new Date().getTime()}.xlsx`)
    },
    /** 文件改变事件 */
    handleFileChange(file, fileList) {
      this.fileList = fileList
      if (fileList.length > 0) {
        this.uploadFile(file.raw)
      }
    },
    /** 文件移除事件 */
    handleFileRemove(file, fileList) {
      this.fileList = fileList
      this.form.imgUrl = ""
      this.previewImage = null
    },
    /** 上传前验证 */
    beforeUpload(file) {
      const isImage = file.type.startsWith('image/')
      const isLt10M = file.size / 1024 / 1024 < 10

      if (!isImage) {
        this.$message.error('只能上传图片文件!')
        return false
      }
      if (!isLt10M) {
        this.$message.error('上传图片大小不能超过 10MB!')
        return false
      }
      return false // 阻止自动上传
    },
    /** 上传文件 */
    uploadFile(file) {
      this.uploadLoading = true
      uploadImage(file).then(response => {
        if (response.code === 200) {
          this.form.imgUrl = response.data.originalUrl
          this.previewImage = response.data.originalUrl
          this.$message.success('上传成功')
        } else {
          this.$message.error(response.msg || '上传失败')
        }
      }).catch(error => {
        this.$message.error('上传失败: ' + error.message)
      }).finally(() => {
        this.uploadLoading = false
      })
    }
  }
}
</script>

<style scoped>
.image-preview-container {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.image-preview-item {
  text-align: center;
}
</style>
